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arXiv 1808.06240math-phmath.CAmath.DGmath.MPnlin.SI
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李系统的多辛结构与不变张量

Multisymplectic structures and invariant tensors for Lie systems

Uniwersytet Warszawski(华沙大学);Centro Universitario de la Defensa & IUMA(国防大学中心与数学统一化研究所)

X. Gràcia, J. de Lucas, M. C. Muñoz-Lecanda, S. Vilariño

AI总结:

本文针对李系统开展研究,开创性提出多辛李系统概念,发展对应几何分析方法,推导其叠加规则、运动常数与不变张量场构造方法,并通过多领域实例验证结果。

摘要:

李系统是描述取值于向量场有限维李代数(即所谓Vessiot-Guldberg李代数)的非自治向量场积分曲线的非自治微分方程组。本工作开创性地分析了相对于多辛结构容许哈密顿向量场Vessiot-Guldberg李代数的李系统,即多辛李系统。本文发展了将李系统视为多辛系统的几何方法,通过多辛结构将多辛李系统与张量余代数关联,推导得出多辛李系统演化对应的叠加规则、运动常数与不变张量场的构造方法,最后通过物理学、数学与控制理论中的实例对所得结果进行了说明。

英文摘要:

A Lie system is the non-autonomous system of differential equations describing the integral curves of a non-autonomous vector field taking values in a finite-dimensional Lie algebra of vector fields, a so-called Vessiot--Guldberg Lie algebra. This work pioneers the analysis of Lie systems admitting a Vessiot--Guldberg Lie algebra of Hamiltonian vector fields relative to a multisymplectic structure: the multisymplectic Lie systems. Geometric methods are developed to consider a Lie system as a multisymplectic one. By attaching a multisymplectic Lie system via its multisymplectic structure with a tensor coalgebra, we find methods to derive superposition rules, constants of motion, and invariant tensor fields relative to the evolution of the multisymplectic Lie system. Our results are illustrated with examples occurring in physics, mathematics, and control theory.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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